How to Convert to Lithium RV Batteries

Does your RV still use lead-acid power cells for its house battery? Have you been thinking about switching over to newer lithium batteries instead? If so, then the video above is definitely for you. It comes our way courtesy of the All About RVs YouTube channel, and it takes an in-depth look at this process, taking us through everything you need to know to convert to lithium RV batteries.

The clip takes us through everything you need to consider when making this conversion, including whether or not you’ll need to replace your battery monitor, adding a solar converter, alternator charging, performance in extreme temperatures, and more. It also takes a look at the cost of such a conversion, which has gotten considerably less expensive as lithium batteries have come down in price. What once seemed prohibitively expensive is now quite affordable, especially when you factor in the longer lifespan that comes with lithium power cells.

Lead-Acid vs. Lithium RV Batteries

We’ve already touched on a few of the benefits of lithium batteries versus lead-acid models, most notably increased storage capacity and a much longer lifespan. Whereas lead-acid power cells offer 300-500 charge cycles, a lithium battery is generally good for ten times those numbers or even more. Lithium cells also charge much more quickly, require less maintenance, weigh a lot less, and are less likely to spark a fire, making them safer, too.

At this point, the main advantage that lead-acid batteries have over lithium is price. The initial cost of buying lithium house batteries is certainly more than their lead-acid counterparts, although you’ll recoup that cost over the lifespan of the battery. A lithium cell can easily last up to ten years, even with heavy use, while a lead-acid model will lose capacity much more quickly and will need to be replaced multiple times over the same span.

Photo Credit: Battle Born

Converting to Lithium RV Batteries

The video does an excellent job of taking viewers through the process of converting your RV to using lithium batteries. As you’ll see, you can complete that conversion in stages, replacing the batteries first, then upgrading the charge converter, your inverter, and other parts over time. That isn’t necessarily the most efficient way to complete the process, but it can help defray the costs to some degree. Ultimately, you’ll want components that are lithium compatible to get the best performance, but you can get by temporarily with your existing parts if you have to.

The notes that accompany the video on YouTube list all of the parts used in the conversion with links to their online product pages. That makes it easy to grab the same parts for your own lithium upgrade project or compare specs with similar products made by alternative manufacturers. Either way, it makes it very easy to see everything you’ll need ahead of time, allowing you to purchase and install those items as you complete different phases of the switch over from lead-acid batteries.

Perhaps the best thing about this video is that it demystifies the process nicely. It shows that there are a number of things to consider when converting from lead-acid to lithium, but that the actual implementation isn’t as difficult as you might think. The clip mixes technical know-how and practical experience nicely, which hopefully will make this project less daunting.

Thanks to the All About RVs channel for sharing.

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